Please help me identify this coin. [решено]

Hi, please can someone help me identify this coin. Thank you.

Roman empire,constantinus

 Very very dark pictures - brightened, cropped, rotated 

 I think the reverse is ‘camp gate’ design. 

 Also below reverse is STR with moon and crescent, for Treveri mint. 

Lettering: PROVIDEN - TIAE CAESS 

 Maybe: N#45288 

Obverse: CONSTANTINVS IVN NOB C 

Thank you :)